Navigation Links
Coastal animals have their own tidal timer -- separate from the 24-hour body clock
Date:9/26/2013

University of Leicester researchers have revealed that coastal animals have their own biological tidal timer, which is separate from their 24-hour body clock.

Experts from the University's Department of Genetics have published a paper in Current Biology which reveals the discovery of an independent clock driving coastal animals' tidal rhythms.

The paper, Dissociation of Circadian and Circatidal Timekeeping in the Marine Crustacean Eurydice pulchra, follows nearly ten years of research by Leicester geneticists, along with colleagues at the Universities of Bangor, Aberystwyth and Cambridge.

The researchers observed the behaviour of Eurydice pulchra, the speckled sea louse which lives along the sandy shores around the UK coast.

Eurydice have a regular 12.4 hour swimming cycle matching the incoming tides which sees them actively swimming around to find food as the tide comes in, and burying themselves in the sand as the tide goes out.

Eurydice also have a 24 hour 'circadian' rhythm in pigmented cells called melanophores, which grow during the day (acting as sunscreen) and become smaller at night when they are not required.

It had been thought for many years that these patterns of tidal behaviour in coastal organisms were driven by the 24-hour circadian clock, the ubiquitous and genetically encoded 'body clock' which controls the rhythmic behaviour and physiology of almost every terrestrial higher organism, including humans.

But the new paper shows that tidal behaviour is not governed by the circadian clock but is instead controlled by a dedicated 12.4-hour "circatidal pacemaker".

The researchers caught Eurydice from the coast near Bangor every season and monitored their behaviour and clock molecules in laboratories at Bangor and Leicester.

The team were able to "turn off" Eurydice's circadian clock by genetically kno
'/>"/>

Contact: Charalambos Kyriacou
cpk@le.ac.uk
01-162-523-430
University of Leicester
Source:Eurekalert

Page: 1 2

Related biology news :

1. Oceanographer Sylvia Earle kicks off Northeasterns Sustaining Coastal Cities Conference
2. Study finds maize in diets of people in coastal Peru dates to 5,000 years ago
3. Brown University scientists to discuss resilience of coastal communities at AAAS
4. Sustaining Coastal Cities Conference at Northeastern University
5. Preserve the services of mangroves -- Earths invaluable coastal forests, experts urge
6. Destroyed coastal habitats produce significant greenhouse gas
7. Clemson, Coastal Carolina universities to set hundreds of sensors in Savannah River
8. PSU study finds caffeinated coastal waters
9. Increasing levels of carbon dioxide in Arctic coastal seas
10. Personality interactions between animals may dictate outcomes in the wild
11. Relating animals to humans could help conservation projects
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... 18, 2014 According to a ... Systems (Video, RFID, Access Control, Intrusion Detection, Parking Management, ... Government), Component Service Geography - Global Forecasts to 2020", ... projected to be around $25 Billion in 2014 and ... at a CAGR of 8.69%. Browse 116 ...
(Date:11/21/2014)... -- Earlier this year Donald Spector , Chairman of ... the most prolific inventors in the world, got a ... to third party agencies. Spector envisioned this technology even ... earliest known patents in this area. Now major technology ... care, elder care and hospital applications. This technology has ...
(Date:11/21/2014)... Calif. , Nov. 20, 2014 Strict ... driver efficiency are piloting the North American and European ... of accidents growing, gesture recognition systems that are intuitive ... a mark in the industry. New ... Automotive Gesture Recognition Market in Europe ...
Breaking Biology News(10 mins):Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 4Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4
... A team of UC Davis investigators has found that ... development of prostate cancer. The mutation of the so-called p53 ... but until now has never been shown to act as ... diagnosing and treating the disease. The study was ...
... far better competitors than their equivalents in the Indian and ... coral reefs. The picture-postcard beauty of Caribbean reefs ... contribute startling white sand to beaches. Coral reefs might seem ... constantly waged between corals and seaweeds that fight over space. ...
... NineSigma , the leading innovation partner to companies worldwide, ... NineSights ™, www.ninesights.com which is free ... NineSights is a secure and collaborative online community that ... relationships needed to drive business value. The platform allows ...
Cached Biology News:UC Davis scientists find new role for P53 genetic mutation -- initiation of prostate cancer 2NineSigma Launches NineSights, the World's First Open Innovation Social Media Destination for Innovation Seekers and Solution Providers 2NineSigma Launches NineSights, the World's First Open Innovation Social Media Destination for Innovation Seekers and Solution Providers 3
(Date:11/26/2014)... YORK, NOVEMBER 21, 2014 (PRWEB) November 26, 2014 ... largest health-oriented communications network, today announced the organization has ... Annual Rx Club Awards. Digitas Health LifeBrands was honored ... while four other PHCG agencies received eight Awards of ... the creative aspects of pharmaceutical advertising and promotion. The ...
(Date:11/26/2014)... 26, 2014 The announced sales of three ... is looking to expand in non-healthcare areas, says Kalorama ... market research firm says that  Siemens is the third ... survey of the IVD market , with 5.5 billion ... its composition would likely affect IVD market shares.  ...
(Date:11/26/2014)... PMG Research, Inc. announced today ... a network of sites that provide clinical research services to ... patient lives through its partnerships with large physician practices and ... site locations in the Southeastern United States and spans over ... board will be held by: Dr. Robert Holmes, ...
(Date:11/26/2014)... (PRWEB) November 25, 2014 The Pittcon ... its official conference and exposition mobile app, ... free download in the App Store for iOS and ... valuable resource tool before, during and after the event. ... details on exhibiting companies, technical sessions, Conferee Networking sessions ...
Breaking Biology Technology:Publicis Healthcare Wins 20 Rx Club Awards 2Publicis Healthcare Wins 20 Rx Club Awards 3Kalorama: Sale of Three Siemens Healthcare Units Raises Questions About Firm's IVD Future 2PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3Pittcon Releases 2015 Mobile App 2
... , March 23 Ambry Genetics today ... of genetic tests expected to pinpoint the cause of ... marks the first time next generation sequencing technology, coupled ... X testing, is being made clinically available to address ...
... PHILADELPHIA , March 23 The Superior Court of Pennsylvania has reinstated an appeal ... The appeal had been dismissed by an order from the same court on February 18, 2010 . The ... , ... ...
... ... Sharing across Kluyver’s European Academic and Industrial Research Sites , ... Basel, Switzerland (PRWEB) March ... discovery and life science research, today announced a five-year-extension of an ongoing collaboration ...
Cached Biology Technology:Ambry Genetics Launches First X-Linked Mental Retardation Diagnostics Using Next Generation Sequencing 2Ambry Genetics Launches First X-Linked Mental Retardation Diagnostics Using Next Generation Sequencing 3Ambry Genetics Launches First X-Linked Mental Retardation Diagnostics Using Next Generation Sequencing 4UPDATE: Appeal of Lawsuit by Former Chief Executive Officer- Reinstated; and Sanctions Order Vacated 2Genedata Announces Five-Year Agreement Extension with Kluyver Centre for Genomics of Industrial Fermentation 2Genedata Announces Five-Year Agreement Extension with Kluyver Centre for Genomics of Industrial Fermentation 3Genedata Announces Five-Year Agreement Extension with Kluyver Centre for Genomics of Industrial Fermentation 4